Finding the Fourth Proportional to 191,499.72, 287,249.13 and 58,381.08

Step by Step Solution

1. Step 1: Write the proportion equation
   191,499.72 : 287,249.13 = 58,381.08 : x
2. Step 2: Convert to fraction form
   191,499.72/287,249.13 = 58,381.08/x
3. Step 3: Cross multiply
   191,499.72x = 287,249.13 × 58,381.08
4. Step 4: Simplify right side
   191,499.72x = 16,769,914,438.46
5. Step 5: Solve for x
   x = 16,769,914,438.46/191,499.72
6. Step 6: Final answer
   x = 87,571.48